The thing is I have daydreamed about killing people; those individuals who have coldly made decisions that have ruined and wasted my life. In my daydream I am told that I only have a short time to live and so I spend that time reeking bloody revenge. What stops me from turning this dream into a reality? Reason, fear and difficulty.
A sane person would not put such a plan into action. But I have not always been sane. Fortunately (and it is only because of the roll of life's dice) I did not suffer from an illness that compelled me towards any violent action. However, it was an illness that distorted reality and employed my reason into coming to some very bizarre conclusions. Having been through that experience I can put myself into the mind of James Holmes and understand.
The insane do kill strangers in England but massacres like the Colorado shootings are extremely rare and have been rendered even more unlikely by our imposition upon ourselves of extremely stringent firearms regulations. We do have drive by shootings and guns are used in other criminal situations. But for a normally law-abiding citizen to get hold of a gun is extremely difficult. Most of us wouldn't know where to start. So "difficulty" is a major obstacle in the way of a deranged person committing a deranged act of murderous violence. It does not make such acts impossible, just very difficult and for most people, especially those who are in mental distress, that is enough.
I cry with you people of America. But what happened yesterday was very foreseeable, has happened many times before and could have been avoided if only you had the courage and selflessness to use your freedom to choose to give up those things that can so readily create human tragedies of obscene proportions. Most of you will blame the mad man. But in truth the blood of the victims is on the hands of those who put the gun into the mad man's hands. That is all of you.